I have 3,2005 IC DT466 EGR Engines, Fuel filter light always coming on. Replaced filter and fuel pump, I even changed primer pump and pressure regulator. Fuel pressure is 50-55 psi. Has anyone had this issue, and what did you find works!

No i haven't checked that yet, we have about 4 buses with the same problem and our admin wanbts us to install a racor filter but there isn't a proper way to splice the suction line that i have found. I've changed everything else on the fuel system on a couple of the buses also. I will check the sensor today on oneof them and see what i find.